Manufacture of decorative glass, porcelain, or the like



6i smo. I MANUFACTURE OF DECORAIIVE GLASS, PORCELAIN, OR THE LIKE.-

Patented Mar. 22, 1921.

INVENTOR.

UNITED STATES PATENT OFFICE.

GORO SATO, OF SAKURA, JAPAN.

MANUFACTURE or DEGORATIVE GLASS, PORCELAIN, on THE LIKE.

Specification of Letters Patent. Patented M 22 1921 Application filed November 26,1919. Serial No. 340,766.

To all wit-omit may concern: I

Be it known that I, Gono SATo, a subject of the Emperor of Japan, residing at city of Sakura, Prefecture of Chiba, Japan, have invented certain new and useful Improvements in the Manufacture of Decorative Glass,.Porcelain, or the like, of which the following is a specification.

This invention relates to the manufacture of a novel kind of decorative glass, fancy porcelain or the like and has for its object to provide artistic panes and panels for windows, doors and such other articles of decoration, as decorative vases, etc.

My invention consists in applying thin pieces or patches of the crust of shell-fish by means of a suitable binder, on glass, porcelain or such other materials as celluloid, papier-mach, metal or gypsum, upon which pictureor design may be delineated to receive the patch or patches, either all over the surface or the portions of the design or picture, and drawing lines on the margins of "appropriate parts of the design on the materials aforesaid.

A practical embodiment of. my invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference inclicate corresponding parts in all the views.

Figure 1 is a; face View of a decorative glass prepared according to my invention.

Fig. 2 is a sectional side elevation of the same on the line2 -2 in Fig. 1.

In the said drawings numeral 1 designates thin sheets of shell of shell-fish prepared and applied to the glass plate 3 by means of a suitable binding agent 4 as hereinafter full described. 2 designates metallized lines drawn over the design.

In patching, the crust of any shell-fish can be used. I preferably use those of seaear or fresh-water-mussels. The crust of these shell-fishes are sufliciently cleansed by treating with caustic soda and made thin by grinding mechanically. The crust or shell is then mounted on fibrous paper by means of a strongly adhesive substance and carefully crushed before itgets dry. The crust thus prepared is cut by sawing and applied to the desired parts of the design.

As for the binding agents, I use shellac, silicate of soda, Canada balsam, japan, gelatin and mendin, singly or one with other or others, in such. manner as gelatin together with mendin, according to the kind of material on which the crust of shell-fish is to be applied. 1

For the lines to be drawn, a kind of paste is first prepared by mixing japan or casein, by addition of a suitable quantity of water, with an appropriate kind of clay destitute of adhesive power, which has been refined by washing with water. This paste is forced out through a passageway of small aperture to let it fall on the surface of the material upon which the said lines are to be drawn. These lines, to help design, are made protruding just like leaded lines of ordinary stained glass. .VVhen they have attained the desired consistency, they are covered, or metallized so to speak, with powder of metal, such as tin, silver or gold, thereby imparting to them a soft, graceful appearance. p

A decorative glass prepared in this way has a graceful effect which artists have long desired to attain. It is considerably more rigid than stained glass of leaded type, be ing capable of withstanding mechanical stresses acting normally to the surface, which is certainly a great advantage of the present invention. Moreover the thermal expansion coeflicient of the shell approximating very closely to that of glass, -the patched sheets of :shell will not tear off from the surface of the panel.

Of course, pieces of shell-sheet be patched on desired portions of ordinary stained glass, in which case the lead lines naturally take the place of the metallized lines described above.

What I claim is:

1. A process of producing decorative glass, porcelain and the like, characterized in that thin sheets or patches of the crust or shell of shell-fish are prepared by cleansing the crust or shell, making it thin by grinding, mounting it by means of an adhesive on fibrous paper, crushing it and cutting it into pieces or patches, and applying these pieces or patches by means of a suitable hinder or adhesive to portions of the said glass, porcelain or the like for the purpose specified.

2. A process of producing decorative glass, porcelain and the like, characterized in that thin sheets or patches of the crust or shell of shelhfish are prepared by cleansing the crust or shell, making it thin by grinding, mounting it by means of an adhesive on fibrous paper, crushing it and cutting it into pieces or patches, and applying these pieces or patches by means of a suitable binder or adhesive onto the whole sur face of a piece of the said glass, porcelain or the like for the purpose specified.

3. A process of producing decorative glass, porcelain and the like, characterized in that thin sheets or patches of the crust or shell of shellfish are prepared by cleansing the crust or shell, making it thin by grinding, mounting it by means of an adhesive on fibrous paper, crushing it and cutting it into pieces or patches, applying these pieces or patches by means of a suitable binder or adhesive to portions of the said glass, orcelain or the like, bordering the "patched? portions with contour lines formed of a suitable pasty material of the desired consistency, andmetallizing the lines by covering with metal powder for the purpose specified.

4. A process of producing decorative glass, porcelain and the like, characterized in that thin sheets or patches of the crust or shell of shell-fish are prepared by cleansing the crust or shell, making it thin by grinding, mounting it by means of an adhesive on fibrous paper, crushing it and cutting it into pieces or patches, applying these pieces or patches by means of a suitable binder or adhesive to portions of the said glass, porcelain or the like, bordering the patched portions and also other portions with contour lines formed of a suitable pasty material of the desired consistency, and metallizing the lines by covering with metal powder for the purpose specified.

5. A process of producing decorative glass, porcelain and the like, characterized in that thin sheets or patches of the crust or shell of shell-fish are prepared by cleansing the crust or shell, making it thin by grinding, mounting it by means of an adhesive on fibrous paper, crushing it and cutting it into pieces or patches, applying these pieces or F patches by means of a suitable binder or adhesive to portions of the said glass, porcelain or the like, bordering the patched portions with contour lines formed by mixing clay with japan or casein together with water, and metallizing the said border lines by covering with metal powder, substantially as described.

6. A process of producing decorative glass, porcelain and the like, characterized in that thin sheets or patches of the crust or shell of shell-fish are prepared by cleansing the crust or shell, making it thin by grinding, mounting it by means of an adhesive on fibrous paper, crushing it and cutting it into pieces or patches, applying these pieces or patches by means of a suitable binder or adhesive to portions of the said glass, poreelain or the like, bordering the patched portions and also other portions with contour GORO SATO. 

